// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
 
using System.Collections.Immutable;
using System.Threading.Tasks;
using Microsoft.CodeAnalysis.MoveStaticMembers;
using Microsoft.CodeAnalysis.Test.Utilities;
using Microsoft.CodeAnalysis.Test.Utilities.MoveStaticMembers;
using Roslyn.Test.Utilities;
using Xunit;
using VerifyCS = Microsoft.CodeAnalysis.Editor.UnitTests.CodeActions.CSharpCodeRefactoringVerifier<
    Microsoft.CodeAnalysis.CSharp.CodeRefactorings.MoveStaticMembers.CSharpMoveStaticMembersRefactoringProvider>;
 
namespace Microsoft.CodeAnalysis.Editor.CSharp.UnitTests.MoveStaticMembers;
 
[UseExportProvider]
[Trait(Traits.Feature, Traits.Features.CodeActionsMoveStaticMembers)]
public class CSharpMoveStaticMembersTests
{
    private static readonly TestComposition s_testServices = FeaturesTestCompositions.Features.AddParts(typeof(TestMoveStaticMembersService));
 
    #region Perform New Type Action From Options
    [Fact]
    public async Task TestMoveField()
    {
        var initialMarkup = @"
namespace TestNs1
{
    public class Class1
    {
        public static int Test[||]Field = 1;
    }
}";
        var selectedDestinationName = "Class1Helpers";
        var newFileName = "Class1Helpers.cs";
        var selectedMembers = ImmutableArray.Create("TestField");
        var expectedResult1 = @"
namespace TestNs1
{
    public class Class1
    {
    }
}";
        var expectedResult2 = @"namespace TestNs1
{
    internal static class Class1Helpers
    {
        public static int TestField = 1;
    }
}";
 
        await TestMovementNewFileAsync(initialMarkup, expectedResult1, expectedResult2, newFileName, selectedMembers, selectedDestinationName).ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestMoveProperty()
    {
        var initialMarkup = @"
namespace TestNs1
{
    public class Class1
    {
        public static int Test[||]Property { get; set; }
    }
}";
        var selectedDestinationName = "Class1Helpers";
        var newFileName = "Class1Helpers.cs";
        var selectedMembers = ImmutableArray.Create("TestProperty");
        var expectedResult1 = @"
namespace TestNs1
{
    public class Class1
    {
    }
}";
        var expectedResult2 = @"namespace TestNs1
{
    internal static class Class1Helpers
    {
        public static int TestProperty { get; set; }
    }
}";
        await TestMovementNewFileAsync(initialMarkup, expectedResult1, expectedResult2, newFileName, selectedMembers, selectedDestinationName).ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestMoveEvent()
    {
        var initialMarkup = @"
using System;
 
namespace TestNs1
{
    public class Class1
    {
        public static event EventHandler Test[||]Event;
    }
}";
        var selectedDestinationName = "Class1Helpers";
        var newFileName = "Class1Helpers.cs";
        var selectedMembers = ImmutableArray.Create("TestEvent");
        var expectedResult1 = @"
using System;
 
namespace TestNs1
{
    public class Class1
    {
    }
}";
        var expectedResult2 = @"using System;
 
namespace TestNs1
{
    internal static class Class1Helpers
    {
        public static event EventHandler TestEvent;
    }
}";
        await TestMovementNewFileAsync(initialMarkup, expectedResult1, expectedResult2, newFileName, selectedMembers, selectedDestinationName).ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestMoveMethod()
    {
        var initialMarkup = @"
namespace TestNs1
{
    public class Class1
    {
        public static int Test[||]Method()
        {
            return 0;
        }
    }
}";
        var selectedDestinationName = "Class1Helpers";
        var newFileName = "Class1Helpers.cs";
        var selectedMembers = ImmutableArray.Create("TestMethod");
        var expectedResult1 = @"
namespace TestNs1
{
    public class Class1
    {
    }
}";
        var expectedResult2 = @"namespace TestNs1
{
    internal static class Class1Helpers
    {
        public static int TestMethod()
        {
            return 0;
        }
    }
}";
        await TestMovementNewFileAsync(initialMarkup, expectedResult1, expectedResult2, newFileName, selectedMembers, selectedDestinationName).ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestMoveExtensionMethod()
    {
        var initialMarkup = @"
namespace TestNs1
{
    public static class Class1
    {
        public static int Test[||]Method(this Other other)
        {
            return other.OtherInt + 2;
        }
    }
 
    public class Other
    {
        public int OtherInt;
        public Other()
        {
            OtherInt = 5;
        }
    }
}";
        var selectedDestinationName = "Class1Helpers";
        var newFileName = "Class1Helpers.cs";
        var selectedMembers = ImmutableArray.Create("TestMethod");
        var expectedResult1 = @"
namespace TestNs1
{
    public static class Class1
    {
    }
 
    public class Other
    {
        public int OtherInt;
        public Other()
        {
            OtherInt = 5;
        }
    }
}";
        var expectedResult2 = @"namespace TestNs1
{
    internal static class Class1Helpers
    {
        public static int TestMethod(this Other other)
        {
            return other.OtherInt + 2;
        }
    }
}";
        await TestMovementNewFileAsync(initialMarkup, expectedResult1, expectedResult2, newFileName, selectedMembers, selectedDestinationName).ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestMoveConstField()
    {
        // const is static so we should work here
        var initialMarkup = @"
namespace TestNs1
{
    public class Class1
    {
        public const int Test[||]Field = 1;
    }
}";
        var selectedDestinationName = "Class1Helpers";
        var newFileName = "Class1Helpers.cs";
        var selectedMembers = ImmutableArray.Create("TestField");
        var expectedResult1 = @"
namespace TestNs1
{
    public class Class1
    {
    }
}";
        var expectedResult2 = @"namespace TestNs1
{
    internal static class Class1Helpers
    {
        public const int TestField = 1;
    }
}";
        await TestMovementNewFileAsync(initialMarkup, expectedResult1, expectedResult2, newFileName, selectedMembers, selectedDestinationName).ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestMoveNothing()
    {
        var initialMarkup = @"
namespace TestNs1
{
    public class Class1
    {
        public static int Test[||]Method()
        {
            return 0;
        }
    }
}";
        var selectedDestinationName = "Class1Helpers";
        var newFileName = "Class1Helpers.cs";
        var selectedMembers = ImmutableArray<string>.Empty;
        var expectedResult1 = @"
namespace TestNs1
{
    public class Class1
    {
        public static int Test[||]Method()
        {
            return 0;
        }
    }
}";
        var expectedResult2 = @"namespace TestNs1
{
    internal static class Class1Helpers
    {
    }
}";
        await TestMovementNewFileAsync(initialMarkup, expectedResult1, expectedResult2, newFileName, selectedMembers, selectedDestinationName).ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestMoveMethodWithTrivia()
    {
        var initialMarkup = @"
namespace TestNs1
{
    // some comment we don't want to move
    public class Class1
    {
        // some comment we want to move
        public static int Test[||]Method()
        {
            return 0;
        }
    }
}";
        var selectedDestinationName = "Class1Helpers";
        var newFileName = "Class1Helpers.cs";
        var selectedMembers = ImmutableArray.Create("TestMethod");
        var expectedResult1 = @"
namespace TestNs1
{
    // some comment we don't want to move
    public class Class1
    {
    }
}";
        var expectedResult2 = @"namespace TestNs1
{
    internal static class Class1Helpers
    {
        // some comment we want to move
        public static int TestMethod()
        {
            return 0;
        }
    }
}";
        await TestMovementNewFileAsync(initialMarkup, expectedResult1, expectedResult2, newFileName, selectedMembers, selectedDestinationName).ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestMoveMultipleMethods()
    {
        var initialMarkup = @"
namespace TestNs1
{
    public class Class1
    {
        public static bool TestMethodBool()
        {
            return false;
        }
 
        public static int Test[||]MethodInt()
        {
            return 0;
        }
    }
}";
        var selectedDestinationName = "Class1Helpers";
        var newFileName = "Class1Helpers.cs";
        var selectedMembers = ImmutableArray.Create("TestMethodInt", "TestMethodBool");
        var expectedResult1 = @"
namespace TestNs1
{
    public class Class1
    {
    }
}";
        var expectedResult2 = @"namespace TestNs1
{
    internal static class Class1Helpers
    {
        public static bool TestMethodBool()
        {
            return false;
        }
 
        public static int TestMethodInt()
        {
            return 0;
        }
    }
}";
        await TestMovementNewFileAsync(initialMarkup, expectedResult1, expectedResult2, newFileName, selectedMembers, selectedDestinationName).ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestMoveSingleMethodFromMultiple()
    {
        // move the method that this was not triggered on
        var initialMarkup = @"
namespace TestNs1
{
    public class Class1
    {
        public static int Test[||]MethodInt()
        {
            return 0;
        }
 
        public static bool TestMethodBool()
        {
            return false;
        }
    }
}";
        var selectedDestinationName = "Class1Helpers";
        var newFileName = "Class1Helpers.cs";
        var selectedMembers = ImmutableArray.Create("TestMethodBool");
        var expectedResult1 = @"
namespace TestNs1
{
    public class Class1
    {
        public static int TestMethodInt()
        {
            return 0;
        }
    }
}";
        var expectedResult2 = @"namespace TestNs1
{
    internal static class Class1Helpers
    {
 
        public static bool TestMethodBool()
        {
            return false;
        }
    }
}";
        await TestMovementNewFileAsync(initialMarkup, expectedResult1, expectedResult2, newFileName, selectedMembers, selectedDestinationName).ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestMoveOneOfEach()
    {
        var initialMarkup = @"
using System;
 
namespace TestNs1
{
    public class Class1
    {
        public static int TestField;
 
        public static bool TestProperty { get; set; }
 
        public static event EventHandler TestEvent;
 
        public static int Test[||]Method()
        {
            return 0;
        }
    }
}";
        var selectedDestinationName = "Class1Helpers";
        var newFileName = "Class1Helpers.cs";
        var selectedMembers = ImmutableArray.Create(
            "TestMethod",
            "TestField",
            "TestProperty",
            "TestEvent");
        var expectedResult1 = @"
using System;
 
namespace TestNs1
{
    public class Class1
    {
    }
}";
        var expectedResult2 = @"using System;
 
namespace TestNs1
{
    internal static class Class1Helpers
    {
        public static int TestField;
 
        public static bool TestProperty { get; set; }
 
        public static event EventHandler TestEvent;
 
        public static int Test[||]Method()
        {
            return 0;
        }
    }
}";
        await TestMovementNewFileAsync(initialMarkup, expectedResult1, expectedResult2, newFileName, selectedMembers, selectedDestinationName).ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestInNestedClass()
    {
        var initialMarkup = @"
namespace TestNs1
{
    public class Class1
    {
        public class NestedClass1
        {
            public static int Test[||]Field = 1;
        }
    }
}";
        var selectedDestinationName = "Class1Helpers";
        var newFileName = "Class1Helpers.cs";
        var selectedMembers = ImmutableArray.Create("TestField");
        var expectedResult1 = @"
namespace TestNs1
{
    public class Class1
    {
        public class NestedClass1
        {
        }
    }
}";
        var expectedResult2 = @"namespace TestNs1
{
    internal static class Class1Helpers
    {
        public static int TestField = 1;
    }
}";
        await TestMovementNewFileAsync(initialMarkup, expectedResult1, expectedResult2, newFileName, selectedMembers, selectedDestinationName).ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestInNestedNamespace()
    {
        // collapse the namespaces in the new file
        var initialMarkup = @"
namespace TestNs1
{
    namespace InnerNs
    {
        public class Class1
        {
            public static int Test[||]Field = 1;
        }
    }
}";
        var selectedDestinationName = "Class1Helpers";
        var newFileName = "Class1Helpers.cs";
        var selectedMembers = ImmutableArray.Create("TestField");
        var expectedResult1 = @"
namespace TestNs1
{
    namespace InnerNs
    {
        public class Class1
        {
        }
    }
}";
        var expectedResult2 = @"namespace TestNs1.InnerNs
{
    internal static class Class1Helpers
    {
        public static int TestField = 1;
    }
}";
        await TestMovementNewFileAsync(initialMarkup, expectedResult1, expectedResult2, newFileName, selectedMembers, selectedDestinationName).ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestMoveFieldNoNamespace()
    {
        var initialMarkup = @"
public class Class1
{
    public static int Test[||]Field = 1;
}";
        var selectedDestinationName = "Class1Helpers";
        var newFileName = "Class1Helpers.cs";
        var selectedMembers = ImmutableArray.Create("TestField");
        var expectedResult1 = @"
public class Class1
{
}";
        var expectedResult2 = @"internal static class Class1Helpers
{
    public static int TestField = 1;
}";
        await TestMovementNewFileAsync(initialMarkup, expectedResult1, expectedResult2, newFileName, selectedMembers, selectedDestinationName).ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestMoveFieldNewNamespace()
    {
        var initialMarkup = @"
public class Class1
{
    public static int Test[||]Field = 1;
}";
        var selectedDestinationName = "NewNs.Class1Helpers";
        var newFileName = "Class1Helpers.cs";
        var selectedMembers = ImmutableArray.Create("TestField");
        var expectedResult1 = @"
public class Class1
{
}";
        var expectedResult2 = @"namespace NewNs
{
    internal static class Class1Helpers
    {
        public static int TestField = 1;
    }
}";
        await TestMovementNewFileAsync(initialMarkup, expectedResult1, expectedResult2, newFileName, selectedMembers, selectedDestinationName).ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestMoveMethodWithNamespacedSelectedDestination()
    {
        // in the case that we have an extra namespace in the destination name
        // we append it on to the old type's namespace
        var initialMarkup = @"
namespace TestNs1
{
    public class Class1
    {
        public static int Test[||]Method()
        {
            return 0;
        }
    }
}";
        var selectedDestinationName = "ExtraNs.Class1Helpers";
        var newFileName = "Class1Helpers.cs";
        var selectedMembers = ImmutableArray.Create("TestMethod");
        var expectedResult1 = @"
namespace TestNs1
{
    public class Class1
    {
    }
}";
        var expectedResult2 = @"namespace TestNs1.ExtraNs
{
    internal static class Class1Helpers
    {
        public static int TestMethod()
        {
            return 0;
        }
    }
}";
        await TestMovementNewFileAsync(initialMarkup, expectedResult1, expectedResult2, newFileName, selectedMembers, selectedDestinationName).ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestMoveMethodFileScopedNamespace()
    {
        // We still keep normal namespacing rules in the new file
        var initialMarkup = @"
namespace TestNs1;
 
public class Class1
{
    public static int Test[||]Method()
    {
        return 0;
    }
}";
        var selectedDestinationName = "Class1Helpers";
        var newFileName = "Class1Helpers.cs";
        var selectedMembers = ImmutableArray.Create("TestMethod");
        var expectedResult1 = @"
namespace TestNs1;
 
public class Class1
{
}";
        var expectedResult2 = @"namespace TestNs1
{
    internal static class Class1Helpers
    {
        public static int TestMethod()
        {
            return 0;
        }
    }
}";
        await new Test(selectedDestinationName, selectedMembers, newFileName)
        {
            TestCode = initialMarkup,
            FixedState =
            {
                Sources =
                {
                    expectedResult1,
                    (newFileName, expectedResult2)
                }
            },
            LanguageVersion = CodeAnalysis.CSharp.LanguageVersion.CSharp10
        }.RunAsync().ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestMoveGenericMethod()
    {
        var initialMarkup = @"
namespace TestNs1
{
    public class Class1
    {
        public static T Test[||]Method<T>(T item)
        {
            return item;
        }
    }
}";
        var selectedDestinationName = "Class1Helpers";
        var newFileName = "Class1Helpers.cs";
        var selectedMembers = ImmutableArray.Create("TestMethod");
        var expectedResult1 = @"
namespace TestNs1
{
    public class Class1
    {
    }
}";
        var expectedResult2 = @"namespace TestNs1
{
    internal static class Class1Helpers
    {
        public static T TestMethod<T>(T item)
        {
            return item;
        }
    }
}";
        await TestMovementNewFileAsync(initialMarkup, expectedResult1, expectedResult2, newFileName, selectedMembers, selectedDestinationName).ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestMoveMethodWithGenericClass()
    {
        var initialMarkup = @"
namespace TestNs1
{
    public class Class1<T>
    {
        public static T Test[||]Method(T item)
        {
            return item;
        }
    }
}";
        var selectedDestinationName = "Class1Helpers";
        var newFileName = "Class1Helpers.cs";
        var selectedMembers = ImmutableArray.Create("TestMethod");
        var expectedResult1 = @"
namespace TestNs1
{
    public class Class1<T>
    {
    }
}";
        var expectedResult2 = @"namespace TestNs1
{
    internal static class Class1Helpers<T>
    {
        public static T Test[||]Method(T item)
        {
            return item;
        }
    }
}";
        await TestMovementNewFileAsync(initialMarkup, expectedResult1, expectedResult2, newFileName, selectedMembers, selectedDestinationName).ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestMoveMethodAndRefactorUsage()
    {
        var initialMarkup = @"
namespace TestNs1
{
    public class Class1
    {
        public static int Test[||]Method()
        {
            return 0;
        }
    }
 
    public class Class2
    {
        public static int TestMethod2()
        {
            return Class1.TestMethod();
        }
    }
}";
        var selectedDestinationName = "Class1Helpers";
        var newFileName = "Class1Helpers.cs";
        var selectedMembers = ImmutableArray.Create("TestMethod");
        var expectedResult1 = @"
namespace TestNs1
{
    public class Class1
    {
    }
 
    public class Class2
    {
        public static int TestMethod2()
        {
            return Class1Helpers.TestMethod();
        }
    }
}";
        var expectedResult2 = @"namespace TestNs1
{
    internal static class Class1Helpers
    {
        public static int TestMethod()
        {
            return 0;
        }
    }
}";
        await TestMovementNewFileAsync(initialMarkup, expectedResult1, expectedResult2, newFileName, selectedMembers, selectedDestinationName).ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestMoveMethodAndRefactorUsageWithTrivia()
    {
        var initialMarkup = @"
namespace TestNs1
{
    public class Class1
    {
        public static int Test[||]Method()
        {
            return 0;
        }
    }
 
    public class Class2
    {
        public static int TestMethod2()
        {
            // keep this comment, and the random spaces here
            return Class1. TestMethod( );
        }
    }
}";
        var selectedDestinationName = "Class1Helpers";
        var newFileName = "Class1Helpers.cs";
        var selectedMembers = ImmutableArray.Create("TestMethod");
        var expectedResult1 = @"
namespace TestNs1
{
    public class Class1
    {
    }
 
    public class Class2
    {
        public static int TestMethod2()
        {
            // keep this comment, and the random spaces here
            return Class1Helpers. TestMethod( );
        }
    }
}";
        var expectedResult2 = @"namespace TestNs1
{
    internal static class Class1Helpers
    {
        public static int TestMethod()
        {
            return 0;
        }
    }
}";
        await TestMovementNewFileAsync(initialMarkup, expectedResult1, expectedResult2, newFileName, selectedMembers, selectedDestinationName).ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestMoveMethodAndRefactorSourceUsage()
    {
        var initialMarkup = @"
namespace TestNs1
{
    public class Class1
    {
        public static int Test[||]Method()
        {
            return 0;
        }
 
        public static int TestMethod2()
        {
            return TestMethod();
        }
    }
}";
        var selectedDestinationName = "Class1Helpers";
        var newFileName = "Class1Helpers.cs";
        var selectedMembers = ImmutableArray.Create("TestMethod");
        var expectedResult1 = @"
namespace TestNs1
{
    public class Class1
    {
        public static int TestMethod2()
        {
            return Class1Helpers.TestMethod();
        }
    }
}";
        var expectedResult2 = @"namespace TestNs1
{
    internal static class Class1Helpers
    {
        public static int TestMethod()
        {
            return 0;
        }
    }
}";
        await TestMovementNewFileAsync(initialMarkup, expectedResult1, expectedResult2, newFileName, selectedMembers, selectedDestinationName).ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestMoveFieldAndRefactorSourceUsage()
    {
        var initialMarkup = @"
namespace TestNs1
{
    public class Class1
    {
        public static int Test[||]Field = 0;
 
        public static int TestMethod2()
        {
            return TestField;
        }
    }
}";
        var selectedDestinationName = "Class1Helpers";
        var newFileName = "Class1Helpers.cs";
        var selectedMembers = ImmutableArray.Create("TestField");
        var expectedResult1 = @"
namespace TestNs1
{
    public class Class1
    {
        public static int TestMethod2()
        {
            return Class1Helpers.TestField;
        }
    }
}";
        var expectedResult2 = @"namespace TestNs1
{
    internal static class Class1Helpers
    {
        public static int TestField = 0;
    }
}";
        await TestMovementNewFileAsync(initialMarkup, expectedResult1, expectedResult2, newFileName, selectedMembers, selectedDestinationName).ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestMovePropertyAndRefactorSourceUsage()
    {
        var initialMarkup = @"
namespace TestNs1
{
    public class Class1
    {
        private static int _testProperty;
 
        public static int Test[||]Property
        {
            get => _testProperty;
            set
            {
                _testProperty = value;
            }
        }
 
        public static int TestMethod2()
        {
            return TestProperty;
        }
    }
}";
        var selectedDestinationName = "Class1Helpers";
        var newFileName = "Class1Helpers.cs";
        var selectedMembers = ImmutableArray.Create("TestProperty", "_testProperty");
        var expectedResult1 = @"
namespace TestNs1
{
    public class Class1
    {
        public static int TestMethod2()
        {
            return Class1Helpers.TestProperty;
        }
    }
}";
        var expectedResult2 = @"namespace TestNs1
{
    internal static class Class1Helpers
    {
        private static int _testProperty;
 
        public static int Test[||]Property
        {
            get => _testProperty;
            set
            {
                _testProperty = value;
            }
        }
    }
}";
        await TestMovementNewFileAsync(initialMarkup, expectedResult1, expectedResult2, newFileName, selectedMembers, selectedDestinationName).ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestMoveGenericMethodAndRefactorImpliedUsage()
    {
        var initialMarkup = @"
namespace TestNs1
{
    public class Class1
    {
        public static T Test[||]Method<T>(T item)
        {
            return item;
        }
    }
 
    public class Class2
    {
        public static int TestMethod2()
        {
            return Class1.TestMethod(5);
        }
    }
}";
        var selectedDestinationName = "Class1Helpers";
        var newFileName = "Class1Helpers.cs";
        var selectedMembers = ImmutableArray.Create("TestMethod");
        var expectedResult1 = @"
namespace TestNs1
{
    public class Class1
    {
    }
 
    public class Class2
    {
        public static int TestMethod2()
        {
            return Class1Helpers.TestMethod(5);
        }
    }
}";
        var expectedResult2 = @"namespace TestNs1
{
    internal static class Class1Helpers
    {
        public static T TestMethod<T>(T item)
        {
            return item;
        }
    }
}";
        await TestMovementNewFileAsync(initialMarkup, expectedResult1, expectedResult2, newFileName, selectedMembers, selectedDestinationName).ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestMoveGenericMethodAndRefactorUsage()
    {
        var initialMarkup = @"
using System;
 
namespace TestNs1
{
    public class Class1
    {
        public static Type Test[||]Method<T>()
        {
            return typeof(T);
        }
    }
 
    public class Class2
    {
        public static Type TestMethod2()
        {
            return Class1.TestMethod<int>();
        }
    }
}";
        var selectedDestinationName = "Class1Helpers";
        var newFileName = "Class1Helpers.cs";
        var selectedMembers = ImmutableArray.Create("TestMethod");
        var expectedResult1 = @"
using System;
 
namespace TestNs1
{
    public class Class1
    {
    }
 
    public class Class2
    {
        public static Type TestMethod2()
        {
            return Class1Helpers.TestMethod<int>();
        }
    }
}";
        var expectedResult2 = @"using System;
 
namespace TestNs1
{
    internal static class Class1Helpers
    {
        public static Type TestMethod<T>()
        {
            return typeof(T);
        }
    }
}";
        await TestMovementNewFileAsync(initialMarkup, expectedResult1, expectedResult2, newFileName, selectedMembers, selectedDestinationName).ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestMoveMethodFromGenericClassAndRefactorUsage()
    {
        var initialMarkup = @"
namespace TestNs1
{
    public class Class1<T>
    {
        public static T TestGeneric { get; set; }    
 
        public static T Test[||]Method()
        {
            return TestGeneric;
        }
    }
 
    public class Class2
    {
        public static int TestMethod2()
        {
            return Class1<int>.TestMethod();
        }
    }
}";
        var selectedDestinationName = "Class1Helpers";
        var newFileName = "Class1Helpers.cs";
        var selectedMembers = ImmutableArray.Create("TestMethod", "TestGeneric");
        var expectedResult1 = @"
namespace TestNs1
{
    public class Class1<T>
    {
    }
 
    public class Class2
    {
        public static int TestMethod2()
        {
            return Class1Helpers<int>.TestMethod();
        }
    }
}";
        var expectedResult2 = @"namespace TestNs1
{
    internal static class Class1Helpers<T>
    {
        public static T TestGeneric { get; set; }
 
        public static T TestMethod()
        {
            return TestGeneric;
        }
    }
}";
        await TestMovementNewFileAsync(initialMarkup, expectedResult1, expectedResult2, newFileName, selectedMembers, selectedDestinationName).ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestMoveMethodFromGenericClassAndRefactorPartialTypeArgUsage()
    {
        var initialMarkup = @"
namespace TestNs1
{
    public class Class1<T1, T2, T3>
        where T1 : new()
    {
        public static T1 Test[||]Method()
        {
            return new T1();
        }
 
        public static T2 TestGeneric2 { get; set; } 
 
        public T3 TestGeneric3 { get; set; }
    }
 
    public class Class2
    {
        public static int TestMethod2()
        {
            return Class1<int, string, double>.TestMethod();
        }
    }
}";
        var selectedDestinationName = "Class1Helpers";
        var newFileName = "Class1Helpers.cs";
        var selectedMembers = ImmutableArray.Create("TestMethod");
        var expectedResult1 = @"
namespace TestNs1
{
    public class Class1<T1, T2, T3>
        where T1 : new()
    {
        public static T2 TestGeneric2 { get; set; } 
 
        public T3 TestGeneric3 { get; set; }
    }
 
    public class Class2
    {
        public static int TestMethod2()
        {
            return Class1Helpers<int>.TestMethod();
        }
    }
}";
        var expectedResult2 = @"namespace TestNs1
{
    internal static class Class1Helpers<T1> where T1 : new()
    {
        public static T1 TestMethod()
        {
            return new T1();
        }
    }
}";
        await TestMovementNewFileAsync(initialMarkup, expectedResult1, expectedResult2, newFileName, selectedMembers, selectedDestinationName).ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestMoveMethodAndRefactorUsageDifferentNamespace()
    {
        var initialMarkup = @"
namespace TestNs1
{
    public class Class1
    {
        public static int Test[||]Method()
        {
            return 0;
        }
    }
}
 
namespace TestNs2
{
    using TestNs1;
 
    public class Class2
    {
        public static int TestMethod2()
        {
            return Class1.TestMethod();
        }
    }
}";
        var selectedDestinationName = "Class1Helpers";
        var newFileName = "Class1Helpers.cs";
        var selectedMembers = ImmutableArray.Create("TestMethod");
        var expectedResult1 = @"
namespace TestNs1
{
    public class Class1
    {
    }
}
 
namespace TestNs2
{
    using TestNs1;
 
    public class Class2
    {
        public static int TestMethod2()
        {
            return Class1Helpers.TestMethod();
        }
    }
}";
        var expectedResult2 = @"namespace TestNs1
{
    internal static class Class1Helpers
    {
        public static int TestMethod()
        {
            return 0;
        }
    }
}";
        await TestMovementNewFileAsync(initialMarkup, expectedResult1, expectedResult2, newFileName, selectedMembers, selectedDestinationName).ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestMoveMethodAndRefactorUsageNewNamespace()
    {
        var initialMarkup = @"
namespace TestNs1
{
    public class Class1
    {
        public static int Test[||]Method()
        {
            return 0;
        }
    }
 
    public class Class2
    {
        public static int TestMethod2()
        {
            return Class1.TestMethod();
        }
    }
}";
        var selectedDestinationName = "ExtraNs.Class1Helpers";
        var newFileName = "Class1Helpers.cs";
        var selectedMembers = ImmutableArray.Create("TestMethod");
        var expectedResult1 = @"
using TestNs1.ExtraNs;
 
namespace TestNs1
{
    public class Class1
    {
    }
 
    public class Class2
    {
        public static int TestMethod2()
        {
            return Class1Helpers.TestMethod();
        }
    }
}";
        var expectedResult2 = @"namespace TestNs1.ExtraNs
{
    internal static class Class1Helpers
    {
        public static int TestMethod()
        {
            return 0;
        }
    }
}";
        await TestMovementNewFileAsync(initialMarkup, expectedResult1, expectedResult2, newFileName, selectedMembers, selectedDestinationName).ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestMoveMethodAndRefactorUsageSeparateFile()
    {
        var initialMarkup1 = @"
namespace TestNs1
{
    public class Class1
    {
        public static int Test[||]Method()
        {
            return 0;
        }
    }
}";
        var initialMarkup2 = @"
using TestNs1;
 
public class Class2
{
    public static int TestMethod2()
    {
        return Class1.TestMethod();
    }
}";
        var selectedDestinationName = "Class1Helpers";
        var newFileName = "Class1Helpers.cs";
        var selectedMembers = ImmutableArray.Create("TestMethod");
        var expectedResult1 = @"
namespace TestNs1
{
    public class Class1
    {
    }
}";
        var expectedResult3 = @"
using TestNs1;
 
public class Class2
{
    public static int TestMethod2()
    {
        return Class1Helpers.TestMethod();
    }
}";
        var expectedResult2 = @"namespace TestNs1
{
    internal static class Class1Helpers
    {
        public static int TestMethod()
        {
            return 0;
        }
    }
}";
        await new Test(selectedDestinationName, selectedMembers, newFileName)
        {
            TestState =
            {
                Sources =
                {
                    initialMarkup1,
                    initialMarkup2
                }
            },
            FixedState =
            {
                Sources =
                {
                    expectedResult1,
                    expectedResult3,
                    (newFileName, expectedResult2)
                }
            }
        }.RunAsync().ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestMoveMethodAndRefactorClassAlias()
    {
        var initialMarkup = @"
namespace TestNs1
{
    public class Class1
    {
        public static int Test[||]Method()
        {
            return 0;
        }
    }
}
 
namespace TestNs2
{
    using C1 = TestNs1.Class1;
 
    class Class2
    {
        public static int TestMethod2()
        {
            return C1.TestMethod();
        }
    }
}";
        var selectedDestinationName = "Class1Helpers";
        var newFileName = "Class1Helpers.cs";
        var selectedMembers = ImmutableArray.Create("TestMethod");
        var expectedResult1 = @"
namespace TestNs1
{
    public class Class1
    {
    }
}
 
namespace TestNs2
{
    using TestNs1;
    using C1 = TestNs1.Class1;
 
    class Class2
    {
        public static int TestMethod2()
        {
            return Class1Helpers.TestMethod();
        }
    }
}";
        var expectedResult2 = @"namespace TestNs1
{
    internal static class Class1Helpers
    {
        public static int TestMethod()
        {
            return 0;
        }
    }
}";
        await TestMovementNewFileAsync(initialMarkup, expectedResult1, expectedResult2, newFileName, selectedMembers, selectedDestinationName).ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestMoveMethodAndRefactorNamespaceAlias()
    {
        var initialMarkup = @"
namespace TestNs1
{
    public class Class1
    {
        public static int Test[||]Method()
        {
            return 0;
        }
    }
}
 
namespace TestNs2
{
    using C1 = TestNs1;
 
    class Class2
    {
        public static int TestMethod2()
        {
            return C1.Class1.TestMethod();
        }
    }
}";
        var selectedDestinationName = "Class1Helpers";
        var newFileName = "Class1Helpers.cs";
        var selectedMembers = ImmutableArray.Create("TestMethod");
        var expectedResult1 = @"
namespace TestNs1
{
    public class Class1
    {
    }
}
 
namespace TestNs2
{
    using TestNs1;
    using C1 = TestNs1;
 
    class Class2
    {
        public static int TestMethod2()
        {
            return Class1Helpers.TestMethod();
        }
    }
}";
        var expectedResult2 = @"namespace TestNs1
{
    internal static class Class1Helpers
    {
        public static int TestMethod()
        {
            return 0;
        }
    }
}";
        await TestMovementNewFileAsync(initialMarkup, expectedResult1, expectedResult2, newFileName, selectedMembers, selectedDestinationName).ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestMoveMethodAndRefactorConflictingName()
    {
        var initialMarkup = @"
namespace TestNs1
{
    public class Class1
    {
        public static int F[||]oo()
        {
            return 0;
        }
    }
}
 
namespace TestNs2
{
    using TestNs1;
 
    class Class2
    {
        class Class1Helpers
        {
            public static int Foo()
            {
                return 1;
            }
        }
        
        public static int TestMethod2()
        {
            return Class1.Foo() + Class1Helpers.Foo();
        }
    }
}";
        var selectedDestinationName = "Class1Helpers";
        var newFileName = "Class1Helpers.cs";
        var selectedMembers = ImmutableArray.Create("Foo");
        var expectedResult1 = @"
namespace TestNs1
{
    public class Class1
    {
    }
}
 
namespace TestNs2
{
    using TestNs1;
 
    class Class2
    {
        class Class1Helpers
        {
            public static int Foo()
            {
                return 1;
            }
        }
        
        public static int TestMethod2()
        {
            return TestNs1.Class1Helpers.Foo() + Class1Helpers.Foo();
        }
    }
}";
        var expectedResult2 = @"namespace TestNs1
{
    internal static class Class1Helpers
    {
        public static int Foo()
        {
            return 0;
        }
    }
}";
        await new Test(selectedDestinationName, selectedMembers, newFileName)
        {
            TestCode = initialMarkup,
            FixedState =
            {
                Sources =
                {
                    expectedResult1,
                    (newFileName, expectedResult2)
                }
            },
            // the test parser thinks "TestNs1.Class1Helpers" is a member access expression
            // but we made a qualified name. The text should still be the same
            CodeActionValidationMode = Testing.CodeActionValidationMode.None
        }.RunAsync().ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestMoveMethodAndRefactorQualifiedName()
    {
        var initialMarkup = @"
namespace TestNs1
{
    public class Class1
    {
        public static int Test[||]Method()
        {
            return 0;
        }
    }
}
 
namespace TestNs2
{
    class Class2
    {
        public static int TestMethod2()
        {
            return TestNs1.Class1.TestMethod();
        }
    }
}";
        var selectedDestinationName = "Class1Helpers";
        var newFileName = "Class1Helpers.cs";
        var selectedMembers = ImmutableArray.Create("TestMethod");
        var expectedResult1 = @"
using TestNs1;
 
namespace TestNs1
{
    public class Class1
    {
    }
}
 
namespace TestNs2
{
    class Class2
    {
        public static int TestMethod2()
        {
            return Class1Helpers.TestMethod();
        }
    }
}";
        var expectedResult2 = @"namespace TestNs1
{
    internal static class Class1Helpers
    {
        public static int TestMethod()
        {
            return 0;
        }
    }
}";
        await TestMovementNewFileAsync(initialMarkup, expectedResult1, expectedResult2, newFileName, selectedMembers, selectedDestinationName).ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestMoveMethodAndRefactorStaticUsing()
    {
        var initialMarkup = @"
namespace TestNs1
{
    public class Class1
    {
        public static int Test[||]Method()
        {
            return 0;
        }
    }
}
 
namespace TestNs2
{
    using static TestNs1.Class1;
 
    class Class2
    {
        public static int TestMethod2()
        {
            return TestMethod();
        }
    }
}";
        var selectedDestinationName = "Class1Helpers";
        var newFileName = "Class1Helpers.cs";
        var selectedMembers = ImmutableArray.Create("TestMethod");
        var expectedResult1 = @"
namespace TestNs1
{
    public class Class1
    {
    }
}
 
namespace TestNs2
{
    using TestNs1;
    using static TestNs1.Class1;
 
    class Class2
    {
        public static int TestMethod2()
        {
            return Class1Helpers.TestMethod();
        }
    }
}";
        var expectedResult2 = @"namespace TestNs1
{
    internal static class Class1Helpers
    {
        public static int TestMethod()
        {
            return 0;
        }
    }
}";
        await TestMovementNewFileAsync(initialMarkup, expectedResult1, expectedResult2, newFileName, selectedMembers, selectedDestinationName).ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestMoveMethodAndRefactorNamespaceAliasWithExtraNamespace()
    {
        var initialMarkup = @"
namespace TestNs1
{
    public class Class1
    {
        public static int Test[||]Method()
        {
            return 0;
        }
    }
}
 
namespace TestNs2
{
    using C1 = TestNs1;
 
    class Class2
    {
        public static int TestMethod2()
        {
            return C1.Class1.TestMethod();
        }
    }
}";
        var selectedDestinationName = "ExtraNs.Class1Helpers";
        var newFileName = "Class1Helpers.cs";
        var selectedMembers = ImmutableArray.Create("TestMethod");
        var expectedResult1 = @"
namespace TestNs1
{
    public class Class1
    {
    }
}
 
namespace TestNs2
{
    using TestNs1.ExtraNs;
    using C1 = TestNs1;
 
    class Class2
    {
        public static int TestMethod2()
        {
            return Class1Helpers.TestMethod();
        }
    }
}";
        var expectedResult2 = @"namespace TestNs1.ExtraNs
{
    internal static class Class1Helpers
    {
        public static int TestMethod()
        {
            return 0;
        }
    }
}";
        await TestMovementNewFileAsync(initialMarkup, expectedResult1, expectedResult2, newFileName, selectedMembers, selectedDestinationName).ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestMoveExtensionMethodDoNotRefactor()
    {
        var initialMarkup = @"
namespace TestNs1
{
    public static class Class1
    {
        public static int Test[||]Method(this Other other)
        {
            return other.OtherInt + 2;
        }
    }
 
    public class Class2
    {
        public int GetOtherInt()
        {
            var other = new Other();
            return other.TestMethod();
        }
    }
 
    public class Other
    {
        public int OtherInt;
        public Other()
        {
            OtherInt = 5;
        }
    }
}";
        var selectedDestinationName = "Class1Helpers";
        var newFileName = "Class1Helpers.cs";
        var selectedMembers = ImmutableArray.Create("TestMethod");
        var expectedResult1 = @"
namespace TestNs1
{
    public static class Class1
    {
    }
 
    public class Class2
    {
        public int GetOtherInt()
        {
            var other = new Other();
            return other.TestMethod();
        }
    }
 
    public class Other
    {
        public int OtherInt;
        public Other()
        {
            OtherInt = 5;
        }
    }
}";
        var expectedResult2 = @"namespace TestNs1
{
    internal static class Class1Helpers
    {
        public static int TestMethod(this Other other)
        {
            return other.OtherInt + 2;
        }
    }
}";
        await TestMovementNewFileAsync(initialMarkup, expectedResult1, expectedResult2, newFileName, selectedMembers, selectedDestinationName).ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestMoveExtensionMethodRefactorImports()
    {
        var initialMarkup = @"
namespace TestNs1
{
    using TestNs2;
 
    public static class Class1
    {
        public static int Test[||]Method(this Other other)
        {
            return other.OtherInt + 2;
        }
    }
}
 
namespace TestNs2
{
    using TestNs1;
 
    public class Class2
    {
        public int GetOtherInt()
        {
            var other = new Other();
            return other.TestMethod();
        }
    }
 
    public class Other
    {
        public int OtherInt;
        public Other()
        {
            OtherInt = 5;
        }
    }
}";
        var selectedDestinationName = "ExtraNs.Class1Helpers";
        var newFileName = "Class1Helpers.cs";
        var selectedMembers = ImmutableArray.Create("TestMethod");
        var expectedResult1 = @"
namespace TestNs1
{
    using TestNs2;
 
    public static class Class1
    {
    }
}
 
namespace TestNs2
{
    using TestNs1;
    using TestNs1.ExtraNs;
 
    public class Class2
    {
        public int GetOtherInt()
        {
            var other = new Other();
            return other.TestMethod();
        }
    }
 
    public class Other
    {
        public int OtherInt;
        public Other()
        {
            OtherInt = 5;
        }
    }
}";
        var expectedResult2 = @"using TestNs2;
 
namespace TestNs1.ExtraNs
{
    internal static class Class1Helpers
    {
        public static int TestMethod(this Other other)
        {
            return other.OtherInt + 2;
        }
    }
}";
        await TestMovementNewFileAsync(initialMarkup, expectedResult1, expectedResult2, newFileName, selectedMembers, selectedDestinationName).ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestMoveExtensionMethodRefactorMultipleImports()
    {
        var initialMarkup = @"
namespace TestNs1
{
    using TestNs2;
 
    public static class Class1
    {
        public static int Test[||]Method(this Other other)
        {
            return other.OtherInt + 2;
        }
    }
}
 
namespace TestNs2
{
    using TestNs1;
 
    public class Class2
    {
        public int GetOtherInt()
        {
            var other = new Other();
            return other.TestMethod();
        }
 
        public int GetOtherInt2()
        {
            var other = new Other();
            return other.TestMethod();
        }
    }
 
    public class Other
    {
        public int OtherInt;
        public Other()
        {
            OtherInt = 5;
        }
    }
}";
        var selectedDestinationName = "ExtraNs.Class1Helpers";
        var newFileName = "Class1Helpers.cs";
        var selectedMembers = ImmutableArray.Create("TestMethod");
        var expectedResult1 = @"
namespace TestNs1
{
    using TestNs2;
 
    public static class Class1
    {
    }
}
 
namespace TestNs2
{
    using TestNs1;
    using TestNs1.ExtraNs;
 
    public class Class2
    {
        public int GetOtherInt()
        {
            var other = new Other();
            return other.TestMethod();
        }
 
        public int GetOtherInt2()
        {
            var other = new Other();
            return other.TestMethod();
        }
    }
 
    public class Other
    {
        public int OtherInt;
        public Other()
        {
            OtherInt = 5;
        }
    }
}";
        var expectedResult2 = @"using TestNs2;
 
namespace TestNs1.ExtraNs
{
    internal static class Class1Helpers
    {
        public static int TestMethod(this Other other)
        {
            return other.OtherInt + 2;
        }
    }
}";
        await TestMovementNewFileAsync(initialMarkup, expectedResult1, expectedResult2, newFileName, selectedMembers, selectedDestinationName).ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestMoveMethodFromStaticClass()
    {
        var initialMarkup = @"
namespace TestNs1
{
    public static class Class1
    {
        public static int Test[||]Method()
        {
            return 0;
        }
    }
}";
        var selectedDestinationName = "Class1Helpers";
        var newFileName = "Class1Helpers.cs";
        var selectedMembers = ImmutableArray.Create("TestMethod");
        var expectedResult1 = @"
namespace TestNs1
{
    public static class Class1
    {
    }
}";
        var expectedResult2 = @"namespace TestNs1
{
    internal static class Class1Helpers
    {
        public static int TestMethod()
        {
            return 0;
        }
    }
}";
        await TestMovementNewFileAsync(initialMarkup, expectedResult1, expectedResult2, newFileName, selectedMembers, selectedDestinationName).ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestMoveMethodRetainFileBanner()
    {
        var initialMarkup = @"// Here is an example of a license or something
// we would want to keep at the top of a file
 
namespace TestNs1
{
    public static class Class1
    {
        public static int Test[||]Method()
        {
            return 0;
        }
    }
}";
        var selectedDestinationName = "Class1Helpers";
        var newFileName = "Class1Helpers.cs";
        var selectedMembers = ImmutableArray.Create("TestMethod");
        var expectedResult1 = @"// Here is an example of a license or something
// we would want to keep at the top of a file
 
namespace TestNs1
{
    public static class Class1
    {
    }
}";
        var expectedResult2 = @"// Here is an example of a license or something
// we would want to keep at the top of a file
 
namespace TestNs1
{
    internal static class Class1Helpers
    {
        public static int TestMethod()
        {
            return 0;
        }
    }
}";
        await TestMovementNewFileAsync(initialMarkup, expectedResult1, expectedResult2, newFileName, selectedMembers, selectedDestinationName).ConfigureAwait(false);
    }
    #endregion
 
    #region Perform Existing Type Action From Options
    [Fact]
    public async Task TestMoveFieldToExistingType()
    {
        var initialSourceMarkup = @"
public class Class1
{
    public static int Test[||]Field = 1;
}";
        var initialDestinationMarkup = @"
public class Class1Helpers
{
}";
        var selectedDestinationName = "Class1Helpers";
        var selectedMembers = ImmutableArray.Create("TestField");
        var fixedSourceMarkup = @"
public class Class1
{
}";
        var fixedDestinationMarkup = @"
public class Class1Helpers
{
    public static int TestField = 1;
}";
 
        await TestMovementExistingFileAsync(
            initialSourceMarkup,
            initialDestinationMarkup,
            fixedSourceMarkup,
            fixedDestinationMarkup,
            selectedMembers,
            selectedDestinationName).ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestMovePropertyToExistingType()
    {
        var initialSourceMarkup = @"
public class Class1
{
    public static int Test[||]Property { get; set; }
}";
        var initialDestinationMarkup = @"
public class Class1Helpers
{
}";
        var selectedDestinationName = "Class1Helpers";
        var selectedMembers = ImmutableArray.Create("TestProperty");
        var fixedSourceMarkup = @"
public class Class1
{
}";
        var fixedDestinationMarkup = @"
public class Class1Helpers
{
    public static int TestProperty { get; set; }
}";
 
        await TestMovementExistingFileAsync(
            initialSourceMarkup,
            initialDestinationMarkup,
            fixedSourceMarkup,
            fixedDestinationMarkup,
            selectedMembers,
            selectedDestinationName).ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestMoveEventToExistingType()
    {
        var initialSourceMarkup = @"
using System;
 
public class Class1
{
    public static event EventHandler Test[||]Event;
}";
        var initialDestinationMarkup = @"
public class Class1Helpers
{
}";
        var selectedDestinationName = "Class1Helpers";
        var selectedMembers = ImmutableArray.Create("TestEvent");
        var fixedSourceMarkup = @"
using System;
 
public class Class1
{
}";
        var fixedDestinationMarkup = @"
using System;
 
public class Class1Helpers
{
    public static event EventHandler TestEvent;
}";
 
        await TestMovementExistingFileAsync(
            initialSourceMarkup,
            initialDestinationMarkup,
            fixedSourceMarkup,
            fixedDestinationMarkup,
            selectedMembers,
            selectedDestinationName).ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestMoveMethodToExistingType()
    {
        var initialSourceMarkup = @"
public class Class1
{
    public static int Test[||]Method()
    {
        return 0;
    }
}";
        var initialDestinationMarkup = @"
public class Class1Helpers
{
}";
        var selectedDestinationName = "Class1Helpers";
        var selectedMembers = ImmutableArray.Create("TestMethod");
        var fixedSourceMarkup = @"
public class Class1
{
}";
        var fixedDestinationMarkup = @"
public class Class1Helpers
{
    public static int TestMethod()
    {
        return 0;
    }
}";
 
        await TestMovementExistingFileAsync(
            initialSourceMarkup,
            initialDestinationMarkup,
            fixedSourceMarkup,
            fixedDestinationMarkup,
            selectedMembers,
            selectedDestinationName).ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestMoveExtensionMethodToExistingType()
    {
        var initialSourceMarkup = @"
public static class Class1
{
    public static int Test[||]Method(this Other other)
    {
        return other.OtherInt + 2;
    }
}
 
public class Other
{
    public int OtherInt;
    public Other()
    {
        OtherInt = 5;
    }
}";
        var initialDestinationMarkup = @"
public static class Class1Helpers
{
}";
        var selectedDestinationName = "Class1Helpers";
        var selectedMembers = ImmutableArray.Create("TestMethod");
        var fixedSourceMarkup = @"
public static class Class1
{
}
 
public class Other
{
    public int OtherInt;
    public Other()
    {
        OtherInt = 5;
    }
}";
        var fixedDestinationMarkup = @"
public static class Class1Helpers
{
    public static int TestMethod(this Other other)
    {
        return other.OtherInt + 2;
    }
}";
 
        await TestMovementExistingFileAsync(
            initialSourceMarkup,
            initialDestinationMarkup,
            fixedSourceMarkup,
            fixedDestinationMarkup,
            selectedMembers,
            selectedDestinationName).ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestMoveConstFieldToExistingType()
    {
        var initialSourceMarkup = @"
public class Class1
{
    public const int Test[||]Field = 1;
}";
        var initialDestinationMarkup = @"
public class Class1Helpers
{
}";
        var selectedDestinationName = "Class1Helpers";
        var selectedMembers = ImmutableArray.Create("TestField");
        var fixedSourceMarkup = @"
public class Class1
{
}";
        var fixedDestinationMarkup = @"
public class Class1Helpers
{
    public const int TestField = 1;
}";
 
        await TestMovementExistingFileAsync(
            initialSourceMarkup,
            initialDestinationMarkup,
            fixedSourceMarkup,
            fixedDestinationMarkup,
            selectedMembers,
            selectedDestinationName).ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestMoveMethodToExistingTypeWithNamespace()
    {
        var initialSourceMarkup = @"
namespace TestNs
{
    public class Class1
    {
        public static int Test[||]Method()
        {
            return 0;
        }
    }
}";
        var initialDestinationMarkup = @"
namespace TestNs
{
    public class Class1Helpers
    {
    }
}";
        var selectedDestinationName = "TestNs.Class1Helpers";
        var selectedMembers = ImmutableArray.Create("TestMethod");
        var fixedSourceMarkup = @"
namespace TestNs
{
    public class Class1
    {
    }
}";
        var fixedDestinationMarkup = @"
namespace TestNs
{
    public class Class1Helpers
    {
        public static int TestMethod()
        {
            return 0;
        }
    }
}";
 
        await TestMovementExistingFileAsync(
            initialSourceMarkup,
            initialDestinationMarkup,
            fixedSourceMarkup,
            fixedDestinationMarkup,
            selectedMembers,
            selectedDestinationName).ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestMoveMethodToExistingTypeWithNewNamespace()
    {
        var initialSourceMarkup = @"
public class Class1
{
    public static int Test[||]Method()
    {
        return 0;
    }
}";
        var initialDestinationMarkup = @"
namespace TestNs
{
    public class Class1Helpers
    {
    }
}";
        var selectedDestinationName = "TestNs.Class1Helpers";
        var selectedMembers = ImmutableArray.Create("TestMethod");
        var fixedSourceMarkup = @"
public class Class1
{
}";
        var fixedDestinationMarkup = @"
namespace TestNs
{
    public class Class1Helpers
    {
        public static int TestMethod()
        {
            return 0;
        }
    }
}";
 
        await TestMovementExistingFileAsync(
            initialSourceMarkup,
            initialDestinationMarkup,
            fixedSourceMarkup,
            fixedDestinationMarkup,
            selectedMembers,
            selectedDestinationName).ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestMoveMethodToExistingTypeRefactorSourceUsage()
    {
        var initialSourceMarkup = @"
public class Class1
{
    public static int Test[||]Method()
    {
        return 0;
    }
 
    public static int TestMethod2()
    {
        return TestMethod();
    }
}";
        var initialDestinationMarkup = @"
public class Class1Helpers
{
}";
        var selectedDestinationName = "Class1Helpers";
        var selectedMembers = ImmutableArray.Create("TestMethod");
        var fixedSourceMarkup = @"
public class Class1
{
    public static int TestMethod2()
    {
        return Class1Helpers.TestMethod();
    }
}";
        var fixedDestinationMarkup = @"
public class Class1Helpers
{
    public static int TestMethod()
    {
        return 0;
    }
}";
 
        await TestMovementExistingFileAsync(
            initialSourceMarkup,
            initialDestinationMarkup,
            fixedSourceMarkup,
            fixedDestinationMarkup,
            selectedMembers,
            selectedDestinationName).ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestMoveMethodToExistingTypeRefactorDestinationUsage()
    {
        var initialSourceMarkup = @"
public class Class1
{
    public static int Test[||]Method()
    {
        return 0;
    }
}";
        var initialDestinationMarkup = @"
public class Class1Helpers
{
    public static int TestMethod2()
    {
        return Class1.TestMethod();
    }
}";
        var selectedDestinationName = "Class1Helpers";
        var selectedMembers = ImmutableArray.Create("TestMethod");
        var fixedSourceMarkup = @"
public class Class1
{
}";
        var fixedDestinationMarkup = @"
public class Class1Helpers
{
    public static int TestMethod()
    {
        return 0;
    }
    public static int TestMethod2()
    {
        return Class1Helpers.TestMethod();
    }
}";
 
        await TestMovementExistingFileAsync(
            initialSourceMarkup,
            initialDestinationMarkup,
            fixedSourceMarkup,
            fixedDestinationMarkup,
            selectedMembers,
            selectedDestinationName).ConfigureAwait(false);
    }
 
    [Fact, WorkItem("https://github.com/dotnet/roslyn/issues/66734")]
    public async Task TestMoveMethodToExistingTypeInSameFile()
    {
        var initialSourceMarkup = """
            public static class WorkflowTypes
            {
                public const string FirstType = "firstType";
            }
 
            public static class WorkflowValidations
            {
                private static readonly System.Collections.Generic.List<string> validWorkflowTypes = new System.Collections.Generic.List<string>()
                {
                    "firstType"
                };
 
            //  Moving this method and above dependency into WorkflowTypes static class 
                public static bool IsValid[||]WorkflowType(this string workflowType) => validWorkflowTypes.Contains(workflowType);
            }
            """;
        var selectedDestinationName = "WorkflowTypes";
        var selectedMembers = ImmutableArray.Create("IsValidWorkflowType", "validWorkflowTypes");
        var fixedSourceMarkup = """
            public static class WorkflowTypes
            {
                public const string FirstType = "firstType";
                private static readonly System.Collections.Generic.List<string> validWorkflowTypes = new System.Collections.Generic.List<string>()
                {
                    "firstType"
                };
            
            //  Moving this method and above dependency into WorkflowTypes static class 
                public static bool IsValidWorkflowType(this string workflowType) => validWorkflowTypes.Contains(workflowType);
            }
 
            public static class WorkflowValidations
            {
            }
            """;
 
        await TestMovementExistingFileAsync(
            initialSourceMarkup,
            // We're testing a move inside the same file, so just use an empty destination.
            initialDestinationMarkup: string.Empty,
            fixedSourceMarkup,
            fixedDestinationMarkup: string.Empty,
            selectedMembers,
            selectedDestinationName).ConfigureAwait(false);
    }
 
    #endregion
 
    #region Selections and caret position
 
    [Fact]
    public async Task TestSelectInMethodParens()
    {
        var initialMarkup = @"
namespace TestNs1
{
    public class Class1
    {
        public static int TestMethod([||])
        {
            return 0;
        }
    }
}";
        var selectedDestinationName = "Class1Helpers";
        var newFileName = "Class1Helpers.cs";
        var selectedMembers = ImmutableArray.Create("TestMethod");
        var expectedResult1 = @"
namespace TestNs1
{
    public class Class1
    {
    }
}";
        var expectedResult2 = @"namespace TestNs1
{
    internal static class Class1Helpers
    {
        public static int TestMethod()
        {
            return 0;
        }
    }
}";
        await TestMovementNewFileAsync(initialMarkup, expectedResult1, expectedResult2, newFileName, selectedMembers, selectedDestinationName).ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestSelectWholeFieldDeclaration()
    {
        var initialMarkup = @"
namespace TestNs1
{
    public class Class1
    {
        [|public static int TestField = 1;|]
    }
}";
        var selectedDestinationName = "Class1Helpers";
        var newFileName = "Class1Helpers.cs";
        var selectedMembers = ImmutableArray.Create("TestField");
        var expectedResult1 = @"
namespace TestNs1
{
    public class Class1
    {
    }
}";
        var expectedResult2 = @"namespace TestNs1
{
    internal static class Class1Helpers
    {
        public static int TestField = 1;
    }
}";
        await TestMovementNewFileAsync(initialMarkup, expectedResult1, expectedResult2, newFileName, selectedMembers, selectedDestinationName).ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestSelectBeforeKeywordOfDeclaration()
    {
        var initialMarkup = @"
namespace TestNs1
{
    public class Class1
    {
        [||]public static int TestField = 1;
    }
}";
        var selectedDestinationName = "Class1Helpers";
        var newFileName = "Class1Helpers.cs";
        var selectedMembers = ImmutableArray.Create("TestField");
        var expectedResult1 = @"
namespace TestNs1
{
    public class Class1
    {
    }
}";
        var expectedResult2 = @"namespace TestNs1
{
    internal static class Class1Helpers
    {
        public static int TestField = 1;
    }
}";
        await TestMovementNewFileAsync(initialMarkup, expectedResult1, expectedResult2, newFileName, selectedMembers, selectedDestinationName).ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestSelectInKeyWordOfDeclaration1()
    {
        var initialMarkup = @"
namespace TestNs1
{
    public class Class1
    {
        pub[||]lic static int TestField = 1;
    }
}";
        var selectedDestinationName = "Class1Helpers";
        var newFileName = "Class1Helpers.cs";
        var selectedMembers = ImmutableArray.Create("TestField");
        var expectedResult1 = @"
namespace TestNs1
{
    public class Class1
    {
    }
}";
        var expectedResult2 = @"namespace TestNs1
{
    internal static class Class1Helpers
    {
        public static int TestField = 1;
    }
}";
        await TestMovementNewFileAsync(initialMarkup, expectedResult1, expectedResult2, newFileName, selectedMembers, selectedDestinationName).ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestSelectInKeyWordOfDeclaration2()
    {
        var initialMarkup = @"
namespace TestNs1
{
    public class Class1
    {
        public st[||]atic int TestField = 1;
    }
}";
        var selectedDestinationName = "Class1Helpers";
        var newFileName = "Class1Helpers.cs";
        var selectedMembers = ImmutableArray.Create("TestField");
        var expectedResult1 = @"
namespace TestNs1
{
    public class Class1
    {
    }
}";
        var expectedResult2 = @"namespace TestNs1
{
    internal static class Class1Helpers
    {
        public static int TestField = 1;
    }
}";
        await TestMovementNewFileAsync(initialMarkup, expectedResult1, expectedResult2, newFileName, selectedMembers, selectedDestinationName).ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestSelectInTypeIdentifierMethodDeclaration()
    {
        var initialMarkup = @"
namespace TestNs1
{
    public class Class1
    {
        public static i[||]nt TestMethod()
        {
            return 0;
        }
    }
}";
        var selectedDestinationName = "Class1Helpers";
        var newFileName = "Class1Helpers.cs";
        var selectedMembers = ImmutableArray.Create("TestMethod");
        var expectedResult1 = @"
namespace TestNs1
{
    public class Class1
    {
    }
}";
        var expectedResult2 = @"namespace TestNs1
{
    internal static class Class1Helpers
    {
        public static int TestMethod()
        {
            return 0;
        }
    }
}";
        await TestMovementNewFileAsync(initialMarkup, expectedResult1, expectedResult2, newFileName, selectedMembers, selectedDestinationName).ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestSelectInFieldInitializerAfterSemicolon()
    {
        // However, a semicolon after the initializer is still considered a declaration
        var initialMarkup = @"
namespace TestNs1
{
    public class Class1
    {
        public static int TestField = 1;[||]
    }
}";
        var selectedDestinationName = "Class1Helpers";
        var newFileName = "Class1Helpers.cs";
        var selectedMembers = ImmutableArray.Create("TestField");
        var expectedResult1 = @"
namespace TestNs1
{
    public class Class1
    {
    }
}";
        var expectedResult2 = @"namespace TestNs1
{
    internal static class Class1Helpers
    {
        public static int TestField = 1;
    }
}";
 
        await TestMovementNewFileAsync(initialMarkup, expectedResult1, expectedResult2, newFileName, selectedMembers, selectedDestinationName).ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestSelectInMultipleFieldIdentifiers()
    {
        var initialMarkup = @"
namespace TestNs1
{
    public class Class1
    {
        [|public static int Goo = 10, Foo = 9;|]
    }
}";
        var selectedDestinationName = "Class1Helpers";
        var newFileName = "Class1Helpers.cs";
        var selectedMembers = ImmutableArray.Create("Goo", "Foo");
        var expectedResult1 = @"
namespace TestNs1
{
    public class Class1
    {
    }
}";
        var expectedResult2 = @"namespace TestNs1
{
    internal static class Class1Helpers
    {
        public static int Goo = 10;
        public static int Foo = 9;
    }
}";
 
        await TestMovementNewFileWithSelectionAsync(initialMarkup, expectedResult1, expectedResult2, newFileName, selectedMembers, selectedDestinationName).ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestSelectMultipleMembers1()
    {
        var initialMarkup = @"
namespace TestNs1
{
    public class Class1
    {
        [|public static int Goo = 10, Foo = 9;
 
        public static int DoSomething()
        {
            return 5;
        }|]
    }
}";
        var selectedDestinationName = "Class1Helpers";
        var newFileName = "Class1Helpers.cs";
        var selectedMembers = ImmutableArray.Create("Goo", "Foo", "DoSomething");
        var expectedResult1 = @"
namespace TestNs1
{
    public class Class1
    {
    }
}";
        var expectedResult2 = @"namespace TestNs1
{
    internal static class Class1Helpers
    {
        public static int Goo = 10;
        public static int Foo = 9;
 
        public static int DoSomething()
        {
            return 5;
        }
    }
}";
 
        await TestMovementNewFileWithSelectionAsync(initialMarkup, expectedResult1, expectedResult2, newFileName, selectedMembers, selectedDestinationName).ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestSelectMultipleMembers2()
    {
        var initialMarkup = @"
namespace TestNs1
{
    public class Class1
    {
 
        public static int DoSomething()
        {
            return [|5;
        }        
        public static int Goo = 10, Foo = 9;|]
    }
}";
        var selectedDestinationName = "Class1Helpers";
        var newFileName = "Class1Helpers.cs";
        var selectedMembers = ImmutableArray.Create("Goo", "Foo");
        var expectedResult1 = @"
namespace TestNs1
{
    public class Class1
    {
 
        public static int DoSomething()
        {
            return 5;
        }
    }
}";
        var expectedResult2 = @"namespace TestNs1
{
    internal static class Class1Helpers
    {
        public static int Goo = 10;
        public static int Foo = 9;
    }
}";
 
        await TestMovementNewFileWithSelectionAsync(initialMarkup, expectedResult1, expectedResult2, newFileName, selectedMembers, selectedDestinationName).ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestSelectMultipleMembers3()
    {
        var initialMarkup = @"
namespace TestNs1
{
    public class Class1
    {
        public static int Go[|o = 10, Foo = 9;
 
        public static int DoSometh|]ing()
        {
            return 5;
        }
    }
}";
        var selectedDestinationName = "Class1Helpers";
        var newFileName = "Class1Helpers.cs";
        var selectedMembers = ImmutableArray.Create("Goo", "Foo", "DoSomething");
        var expectedResult1 = @"
namespace TestNs1
{
    public class Class1
    {
    }
}";
        var expectedResult2 = @"namespace TestNs1
{
    internal static class Class1Helpers
    {
        public static int Goo = 10;
        public static int Foo = 9;
 
        public static int DoSomething()
        {
            return 5;
        }
    }
}";
 
        await TestMovementNewFileWithSelectionAsync(initialMarkup, expectedResult1, expectedResult2, newFileName, selectedMembers, selectedDestinationName).ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestSelectMultipleMembers4()
    {
        var initialMarkup = @"
namespace TestNs1
{
    public class Class1
    {
        public static int Goo = 10, F[|oo = 9;
 
        public static in|]t DoSomething()
        {
            return 5;
        }
    }
}";
        var selectedDestinationName = "Class1Helpers";
        var newFileName = "Class1Helpers.cs";
        var selectedMembers = ImmutableArray.Create("Foo");
        var expectedResult1 = @"
namespace TestNs1
{
    public class Class1
    {
        public static int Goo = 10;
 
        public static int DoSomething()
        {
            return 5;
        }
    }
}";
        var expectedResult2 = @"namespace TestNs1
{
    internal static class Class1Helpers
    {
        public static int Foo = 9;
    }
}";
 
        await TestMovementNewFileWithSelectionAsync(initialMarkup, expectedResult1, expectedResult2, newFileName, selectedMembers, selectedDestinationName).ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestSelectOneOfMultipleFieldIdentifiers()
    {
        // However, a semicolon after the initializer is still considered a declaration
        var initialMarkup = @"
namespace TestNs1
{
    public class Class1
    {
        public static int G[||]oo = 10, Foo = 9;
    }
}";
        var selectedDestinationName = "Class1Helpers";
        var newFileName = "Class1Helpers.cs";
        var selectedMembers = ImmutableArray.Create("Goo");
        var expectedResult1 = @"
namespace TestNs1
{
    public class Class1
    {
        public static int Foo = 9;
    }
}";
        var expectedResult2 = @"namespace TestNs1
{
    internal static class Class1Helpers
    {
        public static int Goo = 10;
    }
}";
 
        await TestMovementNewFileWithSelectionAsync(initialMarkup, expectedResult1, expectedResult2, newFileName, selectedMembers, selectedDestinationName).ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestSelectInTypeIdentifierOfFieldDeclaration_NoAction()
    {
        var initialMarkup = @"
namespace TestNs1
{
    public class Class1
    {
        public static i[||]nt TestField = 1;
    }
}";
        await TestNoRefactoringAsync(initialMarkup).ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestSelectInFieldInitializerEquals_NoAction()
    {
        // The initializer isn't a member declaration
        var initialMarkup = @"
namespace TestNs1
{
    public class Class1
    {
        public static int TestField =[||] 1;
    }
}";
        await TestNoRefactoringAsync(initialMarkup).ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestSelectMethodBody_NoAction()
    {
        var initialMarkup = @"
namespace TestNs1
{
    public class Class1
    {
        public static int TestMethod()
        {
            retu[||]rn 0;
        }
    }
}";
        await TestNoRefactoringAsync(initialMarkup).ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestSelectMethodBracket_NoAction()
    {
        var initialMarkup = @"
namespace TestNs1
{
    public class Class1
    {
        public static int TestMethod()
        [|{|]
            return 0;
        }
    }
}";
        await TestNoRefactoringAsync(initialMarkup).ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestSelectMalformedMethod_NoAction()
    {
        var initialMarkup = @"
namespace TestNs1
{
    public class Class1
    {
        public st[||] {|CS1519:int|} TestMethod()
        {
            return 0;
        }
    }
}";
        await new Test("", ImmutableArray<string>.Empty, "")
        {
            TestCode = initialMarkup,
        }.RunAsync().ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestSelectMalformedField_NoAction1()
    {
        var initialMarkup = @"
namespace TestNs1
{
    public class Class1
    {
        public st[||] {|CS1519:int|} TestField = 0;
    }
}";
        await new Test("", ImmutableArray<string>.Empty, "")
        {
            TestCode = initialMarkup,
        }.RunAsync().ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestSelectMalformedField_NoAction2()
    {
        var initialMarkup = @"
namespace TestNs1
{
    public class Class1
    {
        public st [|{|CS1519:int|} Test|]Field = 0;
    }
}";
        await new Test("", ImmutableArray<string>.Empty, "")
        {
            TestCode = initialMarkup,
        }.RunAsync().ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestSelectMalformedField_NoAction3()
    {
        var initialMarkup = @"
namespace TestNs1
{
    public class Class1
    {
        [|public st {|CS1519:int|} TestField = 0;|]
    }
}";
        await new Test("", ImmutableArray<string>.Empty, "")
        {
            TestCode = initialMarkup,
        }.RunAsync().ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestSelectMalformedField_NoAction4()
    {
        var initialMarkup = @"
namespace TestNs1
{
    public class Class1
    {
        [|publicc {|CS1585:static|} int TestField = 0;|]
    }
}";
        await new Test("", ImmutableArray<string>.Empty, "")
        {
            TestCode = initialMarkup,
        }.RunAsync().ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestSelectPropertyBody_NoAction()
    {
        var initialMarkup = @"
namespace TestNs1
{
    public class Class1
    {
        public static int TestProperty { get; [||]set; }
    }
}";
        await TestNoRefactoringAsync(initialMarkup).ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestSelectNonStaticProperty_NoAction()
    {
        var initialMarkup = @"
namespace TestNs1
{
    public class Class1
    {
        public int Test[||]Property { get; set; }
    }
}";
        await TestNoRefactoringAsync(initialMarkup).ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestSelectStaticConstructor1_NoAction()
    {
        var initialMarkup = @"
namespace TestNs1
{
    public class Class1
    {
        [|static Class1()|]
        {
        }
    }
}";
        await TestNoRefactoringAsync(initialMarkup).ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestSelectStaticConstructor2_NoAction()
    {
        var initialMarkup = @"
namespace TestNs1
{
    public class Class1
    {
        static Cl[||]ass1()
        {
        }
    }
}";
        await TestNoRefactoringAsync(initialMarkup).ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestSelectOperator_NoAction()
    {
        var initialMarkup = @"
namespace TestNs1
{
    public class Class1
    {
        [|public static Class1 operator +(Class1 a, Class1 b)|]
        {
            return new Class1();
        }
    }
}";
        await TestNoRefactoringAsync(initialMarkup).ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestSelectTopLevelStatement_NoAction1()
    {
        var initialMarkup = @"
using System;
 
[||]Console.WriteLine(5);
";
 
        await new Test("", ImmutableArray<string>.Empty, "")
        {
            TestCode = initialMarkup,
            LanguageVersion = CodeAnalysis.CSharp.LanguageVersion.CSharp10,
            TestState =
            {
                OutputKind = OutputKind.ConsoleApplication
            },
        }.RunAsync().ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestSelectTopLevelStatement_NoAction2()
    {
        var initialMarkup = @"
using System;
 
[|Console.WriteLine(5);|]
";
 
        await new Test("", ImmutableArray<string>.Empty, "")
        {
            TestCode = initialMarkup,
            LanguageVersion = CodeAnalysis.CSharp.LanguageVersion.CSharp10,
            TestState =
            {
                OutputKind = OutputKind.ConsoleApplication
            },
        }.RunAsync().ConfigureAwait(false);
    }
 
    [Fact]
    public async Task TestSelectTopLevelLocalFunction_NoAction()
    {
        var initialMarkup = @"
DoSomething();
 
static int Do[||]Something()
{
    return 5;
}
";
 
        await new Test("", ImmutableArray<string>.Empty, "")
        {
            TestCode = initialMarkup,
            LanguageVersion = CodeAnalysis.CSharp.LanguageVersion.CSharp10,
            TestState =
            {
                OutputKind = OutputKind.ConsoleApplication
            },
        }.RunAsync().ConfigureAwait(false);
    }
    #endregion
 
    private class Test : VerifyCS.Test
    {
        public Test(
            string destinationType,
            ImmutableArray<string> selection,
            string? destinationName,
            bool testPreselection = false,
            bool createNew = true)
        {
            _destinationType = destinationType;
            _selection = selection;
            _destinationName = destinationName;
            _testPreselection = testPreselection;
            _createNew = createNew;
        }
 
        private readonly string _destinationType;
 
        private readonly ImmutableArray<string> _selection;
 
        private readonly string? _destinationName;
 
        private readonly bool _createNew;
 
        private readonly bool _testPreselection;
 
        protected override Task<Workspace> CreateWorkspaceImplAsync()
        {
            var hostServices = s_testServices.GetHostServices();
 
            var workspace = new AdhocWorkspace(hostServices);
            var testOptionsService = (TestMoveStaticMembersService)workspace.Services.GetRequiredService<IMoveStaticMembersOptionsService>();
            testOptionsService.DestinationName = _destinationType;
            testOptionsService.SelectedMembers = _selection;
            testOptionsService.Filename = _destinationName;
            testOptionsService.CreateNew = _createNew;
            testOptionsService.ExpectedPrecheckedMembers = _testPreselection ? _selection : ImmutableArray<string>.Empty;
 
            return Task.FromResult<Workspace>(workspace);
        }
    }
 
    private static async Task TestMovementNewFileAsync(
        string initialMarkup,
        string expectedSource,
        string expectedNewFile,
        string newFileName,
        ImmutableArray<string> selectedMembers,
        string newTypeName)
        => await new Test(newTypeName, selectedMembers, newFileName)
        {
            TestCode = initialMarkup,
            FixedState =
            {
                Sources =
                {
                    expectedSource,
                    (newFileName, expectedNewFile)
                }
            },
        }.RunAsync().ConfigureAwait(false);
 
    private static async Task TestMovementNewFileWithSelectionAsync(
        string initialMarkup,
        string expectedSource,
        string expectedNewFile,
        string newFileName,
        ImmutableArray<string> selectedMembers,
        string newTypeName)
        => await new Test(newTypeName, selectedMembers, newFileName, testPreselection: true)
        {
            TestCode = initialMarkup,
            FixedState =
            {
                Sources =
                {
                    expectedSource,
                    (newFileName, expectedNewFile)
                }
            },
        }.RunAsync().ConfigureAwait(false);
 
    private static async Task TestMovementExistingFileAsync(
        string intialSourceMarkup,
        string initialDestinationMarkup,
        string fixedSourceMarkup,
        string fixedDestinationMarkup,
        ImmutableArray<string> selectedMembers,
        string selectedDestinationType,
        string? selectedDestinationFile = null)
    {
        var test = new Test(selectedDestinationType, selectedMembers, selectedDestinationFile, createNew: false);
        test.TestState.Sources.Add(intialSourceMarkup);
        test.FixedState.Sources.Add(fixedSourceMarkup);
        if (selectedDestinationFile != null)
        {
            test.TestState.Sources.Add((selectedDestinationFile, initialDestinationMarkup));
            test.FixedState.Sources.Add((selectedDestinationFile, fixedDestinationMarkup));
        }
        else
        {
            test.TestState.Sources.Add(initialDestinationMarkup);
            test.FixedState.Sources.Add(fixedDestinationMarkup);
        }
 
        await test.RunAsync().ConfigureAwait(false);
    }
 
    private static async Task TestNoRefactoringAsync(string initialMarkup)
    {
        await new Test("", ImmutableArray<string>.Empty, "")
        {
            TestCode = initialMarkup,
        }.RunAsync().ConfigureAwait(false);
    }
}